SCMNPs@Urea/Py-CuCl<sub>2</sub>: a recyclable catalyst for the synthesis of pyrano[2,3-<i>d</i>]pyrimidinone and pyrano[2,3-<i>d</i>] pyrimidine-2,4,7-trione derivatives
作者:Jun Zhang、Hongqing Song、Ruirui Cui、Chaoyong Deng、Qahtan A. Yousif
DOI:10.1080/00958972.2020.1737681
日期:2020.2.16
Abstract An efficient, simple, and mild strategy for the one-pot multicomponent synthesis of pyrano[2,3-d]pyrimidinone and pyrano[2,3-d]pyrimidine-2,4,7-trione derivatives is described using SCMNPs@Urea/Py-CuCl2 nanoparticles as a reusable heterogeneous magnetic nanocatalyst. The catalyst was characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating
Straightforward multicomponent synthesis of pyrano[2,3-d]pyrimidine-2,4,7-triones in β-cyclodextrin cavity and evaluation of their anticancer activity
作者:Manisha R. Bhosle、Pooja Andil、Diksha Wahul、Giribala M. Bondle、Aniket Sarkate、Shailee V. Tiwari
DOI:10.1007/s13738-019-01633-2
日期:2019.7
AbstractIn the present study, we have developed an efficient and green method for the synthesis of pyrano[2,3-d]pyrimidine-2,4,7-triones employing β-cyclodextrin as a catalyst in aqueous media from substituted aldehydes, barbituric acid and meldrum acid. The reactions were performed under mild conditions to afford biologically active target molecules in excellent yields. All the synthesized compounds
Microwave-assisted, mild, facile, and rapid one-pot three-component synthesis of some novel pyrano[2,3-d]pyrimidine-2,4,7-triones
作者:Sadeq Hamood Saleh Azzam、M.A. Pasha
DOI:10.1016/j.tetlet.2012.10.056
日期:2012.12
Novel pyrano[2,3-d]pyrimidine-2,4,7-triones were synthesized in 90–97% yield via a three-component reaction of an aromatic aldehyde, Meldrums acid, and barbituric acid in the presence of 10 mol % K2CO3 under microwave irradiation. This is the first protocol to be reported for the synthesis of title compounds and the significant features of the present protocol are simplicity, high yields, short reaction
新型的吡喃并[2,3 - d ]嘧啶-2,4,7-三酮在10 mol%的存在下通过芳族醛,Meldrums酸和巴比妥酸的三组分反应以90-97%的产率合成在微波辐射下的K 2 CO 3。这是首次报道的用于标题化合物合成的方案,本方案的显着特征是简单,高收率,反应时间短,需要进行水后处理程序,对环境无害,并且不进行色谱纯化。
Electrogenerated base-promoted synthesis of 5-aryl-5,6-dihydro-2H-pyrano[2,3-d]pyrimidine-2,4,7-triones by multicomponent assembly of barbituric acid, aldehydes and Meldrum's acid at room temperature